Photographic apparatus for films.



P. DIETZ.

PHOTOGRAPHIC APPARATUS FOR FILMS.

APPLICATION FILED JUNE 28. 191s.

Patented Sept. 8,l 1914..

2 'SHEETS-SHEET 1.

- WWI 1 imi @9i/Mmes P. DIETZ.

PHOTOGRAPHIG APPARATUS POB. FILMS.

APPLICATION FILED JUNE 28, 15513.

yPasealltedl Sept.' 8, 1914.

2 SHEETS-SHEET 2.

` which isautoniatically placed in condition.`

-is drawn out and' moved in.

PAUL DIETZ, or BRooxLYN, NEW Yoan",

ING COMPANY INC.,

PATENT onirica.

nssI'GNoR To NEW DEAs MANUFACTUR- or. `New YORK, N. Y.

PHoroGaArHIc APPARATUS' ron.4 rILMs.

I Application led .Tune 28, 1913. Serial No. 776,213.

To all whom it may concern Be it known that I, PAUL Din'rz, a citizen of the Empire of Germany, and a resident of Brooklyn, county of Kings, and State of New York, have invented certain new and useful improvements in Photographic Apparatus for Films, of which the following is a specification.

This invention has reference to improvements in photographic apparatus for films.

It pertains particularly to a .novel camera for exposure by one single operation and mechanism vis provided for guarding the operator against any mistakes.

In certain cameras of former constructions 'quite a number of operations have to be performed for the purpose of getting a iilm portion in position for` exposure, tensioning the shutter, etc. If one of these operations was forgotten, for instance, if the ilrn were not moved or if the iilm was moved and the shutter not tensioned a failure resulted. Sometimes two or three pictures 'were taken on the same iilm portion or no exposure was effected atl all and film portionsA were lost and the o-perator disappointed.

, rl `he present invention has for its purpose to produce a camera'by means of which the operator isn protected against anyv inattention, oversight, carelessness, ordisturbance from otherparties, and against t-he loss of any lm portion. In addition to thisprotective feature, the single operation necessary for placing the camera in condition for exposure renders this novel camera very desirable. Furthermore, if this single perat-ion has notbeen fully performed no picture can be taken and no loss is incurred. While these various .phases of piacing the camera in condition for; exposureare going on the shutter is also automatically tensioned, all by the samesingle operation. These main objects have been 'primarily attained by providing mechanism v in connection with t-he plate carrying the objective which is automatically operated when the objective plate thereto, means .are provided for rendering the entire mechanism inactive and care has 1.910, means in a fixed camera are described, .operated by lever mechanism and the shutter' Specleation of Letters ',Patent.

In addition- Patented sept. s, 1914.

'moves in proportion to theoperation of the lever mechanism. T he present invention comprises a lazy tongs mechanism which operates the shutter but exposure may take place only when the lazy tongs mechanism is completely drawn out. Furthermore, in the present invention-the shut-ter vrdoes not operate at all until the entire new film portion is in the exact desired position. The former fixed camera can not be unfolded while the protective and' guard -mechanism of the present invention is operated by the drawing out of the unfolding part of .the

camera. Y I

In order to render the invention entirely clear reference is had to the accompanying drawings in which:

Figure l represents in rear sectional elevation a photographic apparatus embodying in desirable 4formthe present improvement-s. Fig. 2 yis a longitudinal cross-section ywith drawn out objective plate. Fig. 3 is a top sectional plan view of part of the mechanism. Fig. 4 illustrates in detail view the 'shutter mechanism.- Fig. 5 shows in modiiied form the ilm operating mechanism. Fig. 6 shows in partial elevation a modified form of the mechanism for releasing the film moving device.

Similar characters of reference denote'lilre parts in all the figures.

In the drawing, l represents the casing which normally houses .the entire mechanism. It is immaterial for the present invention whether the shutter is mounted before, between or in the rear of the lenses, .or in a focal plane. In the accompanying drawings the shutter is shown to be located between the lenses and inFig. 4 a shutter of the leaf type is'represented. The shutter is protected against premature release until the new iilm is in the desired position. Any -exposure of a partially moved film is entirely' impossible and the shutter can not be released until the movable objective mechanism of the camera is in the proper position, that is, until it is set for innite distance.

As previously mentioned, the setting of the, entire camera mechanism lrequires but a single operation. plate 2 is drawn out the entire protective and operative mechanism is actuated.. In Figs. l, 2 and 3 the camera is shown ready for taking a picture. For exposure it then While the objectivea'fter a picture has been taken the Acamera is closed and by closing the same the exposed portion of the film is moved and Wound upon a rcel and a new portion ofthe film unwinds from another reel and is brought before the opening. At the same time the shutter is tensioned for the next exposure.

.The objective plate 2' is connectedv with the camera by a lahy tongsconnection asv shown in Figs. 2 and 3. This connection' comprises an arrangement of bars similar to toggle levers 4, 5. These are pivota'llyl connected in the center and permanently, but' movably secured in the lower frame por# tions, while the two opposite free ends are adapted to move in slots 6 and 7. The end portion8 of the lever 5 is shown to bein its lowest position in Fig'. 2 when the camera is open. When the camera is' closing this end portion performs an ascending mot-ion in the' slot 6. A toothed rack 9, Figs. 1, 2 -and 3, is coupled with the .end portion of the lever 5, which rack engages a pinion 10. This pinion, by its motion rotates the shaft* 11. The shaft 11 rotates two chain` or similar wheels 12, 13 mounted thereon. Anotherf gear 14 is mounted 'on theshaft and rotated thereby engaging an adjoining gear 15 which in. turn drives the automatlc film rolling-up mechanism 16, comprising a gear 17 anda cog-wheel 1.8.- Thisfmechanism is adapted to ,roll'up the film in but one direction. Above'the shaft 11 and above the film opening there is a like second shaft 19 pr'ovided with two guide rm s and chain or similar wheels 20, 21 aroun which move the chains 22,23 or perforated metal bands. The chains or' perforated metal bands 22, 23 are provided each with-,a gripper 24, 25 which are advantageously mounted upon a connecting rod 26. The chain 23 further is provided with a pin 27 on'lts inner portion which is located between thechain wheels 13, 21 and faces the shutter. This pin 27 reachesinto a slotted bar 28 which 1s connected with an auxiliary lazy tongs mechanism 29 and moves the same'when the slotted bar 28 a cends. The slotted member 28lias two horl ontal `side bars 30, 31'v and the neighboring joint of said, auxiliary lzv tongs mechanism is providedf with a flied buttonV 32, that travelsin the bars 371i which 4act' `as a guide for the said button'. This arrangement insures a'perfectly neri-- zontal movement of theauxilia lazy tongs mechanism.vv In order tomount-t is auxiliar 'mamme-lazy tongs-Hakes, two tubes, a 34 are-provided: of which the't-ube 33 is se cured to the casing land thetbe' 34 to the shutter frame. The -tube 33" carries a'sleeve 35 adapted to move thereon.x The o'pe'n ends of the' auxiliary lazy things-mechanism are Secured tosaid sleeve 35' and the united lopposite en/ds of' the lazfy .tongsare' connected `to Athe sleeve, provided on' theitbe 34. In Fig. 3 of the drawing, in which the objective plate mechanism is shown to be drawn out, the' sleeves 35, 36 are in their lowest position. Upon closing the camera the lazy tongs link 29 and the pin 27 move freely without any further eil'ect until the pin 27 has reached the top end of the slot and during the ascending motion of the 'sleeve 36 it pushes up the shutter 3 thereby tensioning the same for the next exposure. During this operation the chains 22, 23 move around the chain wheels 13 21. The grippers 24, 25 descend with the chain and move lthe film which was exposed and the lower mechanism windsl it upon the' reel. The grippers 24, 25 are each provided with a pointed curved arm which pierces the film pin 27 ascends and tensions the shutter. Assuming that the camera is now Iclosed and jective plate is drawn out and the mechanism moves in the opposite direction as compared with the closing ofthe camera, but without performing positive work. The grippers 24, 25 ascend `now and move freely over the film. The pin 27 descends, when 28 then the sleeve 36 releases a safety lever 37 so that the tensioned shutter v can be =operated by means of the shutter release lever or button 38. 1f the pin 27 has not yet .l reached its lowest'f position Vand Isomeone 'attempts to operate the shutter by the ever device or button 38, then no release can take :place and the shutter' is `guarded against jpr'emature release. To prevent premature e sleeve 36 is hollowe'd out at its bottom end and the tube' 34 has ay short longitudinal slot. A rod 39 is permanently but movably l located within the tube 34 and carries a pin 40 that travels in the shortslot of the tube 34. When the lazy tongs link-29descends it touches, duringlthephase of movement, the

pin 40 and moves the rod 39-down wherebyI fthe safety leven 37 is released 'and sets'free the shutter which then is'to'be operated by the release lever or button 38. l 'y For the purpose ofA rendering it possible to 'apply' the desired mechanism to cameras having a hinged front late, the toothed j rack 9 hereinbefore described is re laced by la toothed segment 41 Awhereby` t e entire mechanis'm may be' actuated' in' the same Vmanner as Lwhenl the rackis operated by drawing' out the objective plate.

. Certain circur'n'star'icesv may make it` del sirable -t'o' move part of the mechanism in- Qdependently. To Vrender this ossible av coupllng-42- ispro'vided,4 shown 1n Figs. 1

the-gear 101with th'e'headI shaft 11. A spe- .cia1fconstructon of a coupling is shown in a new plcture shall be taken,then the ob 28, whereupon the sleeves 35, 36 are raised y andcarries it along. This occurs while the.

it has reached its lowest position in the slot l 01' involuntary release ofthe shutter, the

`a1`d 3. This coupling is adapted to release lever 44 is moved in an upward direction then the toothedI rack is shii'ted sidewise, asl

shown in dotted lines, to the left in Fig. 6.

The pin 8 is then disconnected and nieves freely without affecting the moving mechanism of the film. The left portion4 of Fig.

6 shows the camera in a closed condition. The right portion of Fig. 6 shows the pin 8 in its lowest position which is the case when the camera is open.

It is evident that the rackl 9 has always the same amount of movement in one size of apparatus. The single `members of the auxiliary lazy tongs link likewise are of thei same length in a certain size of apparatus For other sizes these elements may be ofi greater or smaller size. The pinion 10 may]l have more or less teeth according to the: size of the apparatus.

Vhen the mechanism is in the exactiposition so that a new film portion is before the opening and the shutter is tensioned then thefinal adjustment for distance is effected by means of a spiral device on the front plate4 of the objective mechanism. The spiral mounting of the focal adjustment is of usual construction.

The coupling is desirable in this camera for the purpose of preventingr the loss of any portionof the film. If an automobile, for instance, appears to approach the operator and suddenly turns and disappears the operator may desire to close the camera without taking a picture. The operator then releases the coupling to prevent the motion' of the -lm whereupon he may close the camera. Vvlhen another object then shall be photographed later on, the objective plate is simply moved out and the new picture may be takenon the film portion still in posit'on. N ow'the coupling is operated to make the entire mechanism again movable,-

.or the coupling may be directly operated when the obj ective plate has been drawn out. The entire mechanism mayv also be operated bvmeans'cf' a button 45 or lever connected with the gear 15, or withfthe shaft 11, or on the upper shaft 19,.

Iclaini as my invention:

1. A photographic apparatus for lilms., consisting of partly stationarily mounted and partly movable mechanism composed of rigid elements comprising an intermediate connection adapted to place the entire mechanism -in condition for exposure by the single operation of drawingout the movablemech anism thereof, and moving a full film portion by returning said movable mechanism.

2. A photographic apparatus for films,

consisting of partly stationarily mountedand partly movable mechanism composed of rigid elements, comprising a movable objective plate, and an extensible intermediate connection between the said'mechanism and objective plate adapted toplace the entire mechanism in condition' forv exposure by the single operation of completely moving in the mechanism and drawing out the objective plate. f l

3. A photographic apparatus for films,

consisting of partly stationarily mounted and partly movable mechanism composed of rigid elements, comprising a movable objective plate, an extensible intermediate connection between the said mechanismand objective plate adapted to place the entire mechanism in condition for exposure bythe single opera-tion of completely moving in the mechanism and drawing out the objective plate, and means for preventing exposure until the objective plate has been` completely drawn out. l

4. A photographic apparatus for films,

consisting of partly stationarily mounted and partly movable mechanism composed f rigid elements, comprising a movable objective plate, 'means in `connection with said mechanism and objective plate Jfor placing the camera in condition for exposure by completely pushing in and drawing out the objective plate, means for rendering inactive the mechanism 'for placing the camera in position for exposure, and means for moving a complete film portion when said-mechanismis inactive.

5. A photographic apparatus for films, consisting of partly stationarily mountedand partly movable mechanismk composed' of rigid element-s, comprising meansfor placing a new film portion before the opening, a movable objective plate on the camera,

lmeans in connection with said mechanism and objective plate adapted to place the camera in condition for exposure by the single Y operation of pushing inand drawing out the objective plate, and means for preventing exposure ofthe new film portion until the objective -plate has been completely drawn out. l

6. A photographic apparatus for films, consisting of partly stationarily mounted and partly movable mechanism composed of rigid elements, comprising means for moving a film portion, a shutter, and means for tensioning the same, a movable objective plate on thecamera, means connecting said mechanism' and objective plate adapted to placethe entire mechanism in position for exposure by completely pushing in and drawing out said plate, and means preventing the release of the shutter until the vplate is completely drawn out.. l

' 7 A photographic camera for films, consisting of mechanism for placing the camera ing said' shutter.

operated thereby, .tated by therac in condition for exposure comprising a movable objective plate with side frame portions having each a slot in the upper portion, tWO similar frames in the sides of the camera with slotted upper portions, a llazy tongs connection secured with one lower end on the plate -frame and with the other on the frame in the camera and having free top ends adapted to move in the slots of the frames, and mechanism in connection with the moving inner top ends of Vthe' levers to move the film, and mechanism in connection with the top ends of the other` levers to tension the shutter .when the camera is closing. 8.y In a photographic camera for films, a movable objective plate with side frame portions having a slot in its upper portion, a side frame within the camera with corresponding slotin its upper portion, a lazy tongs connection comprising two pivotally connected levers, one lever having one bottom end movably secured to the plate iframe and the other to the frame in the camera, the free end of the irst lever being adapted to 'travelin the slot of the frame in the camera a'nd the top end of the second lever in the slot of the plate frame, a toothed lrack coupled with the free end of the first lever,

a pinion with shaft engaged by the rack, a gear on the second end ofo the pinion shaftand gears engaged thereby with a cog-wheel for, actuating the lm'rollin-up mechanism in but one direction.

9. In a camera, a movable objective plate with frame having a slot in its upper portion, aside frame Within the camera with corresponding slot, a shutter housing with shutter therein, within `the camera, a lazy tongs connection comprising two pivotally connected levers, one lever having one bottom end movably secured to the plateV frame and thel other` to theframe in the camera, the free end of the first lever being adapted to travel in -theV slot of the frame in 'the camera and the top end of the second leverv withv the latter for 'pushing up the shutterv when the camera is closing thereby tension- 1.0.` In a camera,'amvable objective plate with lframe,l a shutter housing' withfshutter on said plate, a'lazy Itongs 'connection between the camera and objective plate, a rack a pinion .with shaft rochain wheels with chains operated bythe pinion shaft, .a pin on the inner chain portion facing the objective plate, and means actuated by the pin for raising andthereby tensioning the shutter.

11. In acamera, an objective plate with frame, a shutter housing with shutter on said p ate, a lazy tongs connection comprising an auxiliary lazy tongs link, a tube with lslot and movable sleeve on the shutter frame to'which one end of the lazy-tongs link is connected, a rod ink said tube with pin extending through the slot, a like tube and sleeve supportmg the opposite ends of the lazy tongs link, chain Wheels operating the lazytons connection, a pin on the inner portion facing `the objective plate, a slotted member in which said pin travels, said pin raising the auxiliary lazy tongs link when the camera is closing, together, with the sleeves to which'it is connected, and raising thereby the shutter tensioning the same. l

12. In camera, an objective plate, a

lazy tongs connection between said plate.y on the camera, rack and chain wheel.mecha nism operating the lazy tongs connection when closing the camera, grippers on the chain portionsv facing the rear of the camera, a pointed curved lever on each gripper adapted to pierce the film and move it into position before the opening.

13. In a camera, mechanism for placing the apparatus in condition for exposure,`

comprising a movable objective plate, alazy' tongs connection between said plate and said 'nection, and mechanism for moving anfull iilm portion and tensioning simultaneously the shutter operated thereby.

Signed at New York, N. Y., this 27th day ofJ-une, 1913. v

`. PAUL DIETZ.

Witnesses: ,y

MARIE LEAHY, i -SAM M. CURRAN. 

